Rolling-mill appliance



March 27, 1928.

2 S'nefats-Shefyu 1 'jill-"1 W. A. IRVIN ROLLING MILL APPLIANCE F'lled Sept 23 1925 March 27, 1928.

1,663,844 W. A. IRVIN ROLLING MILL APPLIANCE Filed Sept. 28. 1925 2 Sheets-Sheet 2 Patented Mar. 27, 1928.

UNITED STATES PATENT ori-"ics,

WILLIAM A. IBVIN, OF PITTSBURGH, PENNSYLVANIA, ASSIGNOR TO AMERICAN SHEET AND TIN PLATE COMPANY, OF PITTSBURGH, PENNSYLVANIA, A CORPORA- TION 0F NEW JERSEY.

ROLLING-MILL APPLIANCE.

.Application filed September 28, 1925. Serial No. 58,111. i

This invention relates to a rolling mill and more particularly to a cold rolling mill for finishing highly finished plates and sheets, and has for its object an improved form of such mill having means for preventing the plates from pinching, or buckling in the rolls, and also prevents the rear ends of the plates from flipping when entering the rolls, all of which produce damaged plates.

Heretofore a single roll known in the art `as a-feather roll has been arranged parallel with the metal working rolls of the mill at a point slightly above the pass between the metal working roll-s and in contact with the upper one of the metal working rolls, and the plates were fed between this feather roll and the upper one of the metal working rolls and then passed between the metal working rolls. This single feather roll prevented the pinching and buckling of the plates being rolled to a certain extent, but the rear ends of the plates would flip or snap dbwn when leaving the pass between the feather roll and the upper metal working roll, resulting in the making of transverse marks or scars on the plates or sheets.

The present invention provides a new form of feather rolls which prevent all pinching or buckling ofthe plates and also 'eliminate' theY dipping or snapping ofthe rear end of the plates or sheets as they leave the feather rolls and thus provide for a more perfectly finished plate free Afrom blemishes or scars. v

In the drawings:

Figure 1 is aplan view of a stand of rolls having my invention applied thereto.

Figure 2 is a partial'sectional elevation thereof.

Figure 3 is an enlarged side elevation of the bearing bracket andpinch rolls.

' Figure 4 is an enlarged plan thereof.

Referring more 'particularly to the drawings, the numerall 2 designates the roll housings which are of well known construction and' rovided with the usual windows 3 in which3 the metal working rolls 4 are mounted.

A. bearing bracket 5 is adjustably secured to the outside face of each of the rollhousings by bolts 6 passing through the slots 7 r The brackets project toward the metal provided with opentheir other ends slotted at 15 and fitted around a threaded pin 16 and bearing against a. shoulder 17 on said pin. Tension bolts 18 are secured in each of the brackets 5 and pass up through the springs 12 intermediate their ends and are provided with nuts 19 which when screwed down on the springs increase the tension thereof. Y

The rolls 11 extend parallel with the metal working rolls 4 and due to the position of the brackets 5 are positioned within the confines of the roll housings and in close proximiilty to 'the bite or pass of the working ro s. e

The feather or lpinch rolls 11 serve to hold the plates or sheets as they are being drawn through the working rolls and thereby prevent pinching or buckling of the plates or sheets, and due to the bite or pass of both the pinch rolls and working rolls being in alinement there is no snap or flip of the plate as it leaves the pinch rolls and. therefore, the transverse marks produced by the feather rolls heretofore used are eliminated.

lVhile I have shown and described only one preferred embodiment of my invention,`

it will be understood that I do not wish to `be limited thereto, since various modications may be made without departing from thc scope of my invention as defined in the i appended claim.

vided with vertically disposed. openings, bearing blocks mounted in said openings, a pair of idler pinch rollers of equal length With saidy metal Working rolls and arranged parallel with said Working rolls and journaled in said bearing blocks, said pinch rollers being positioned Within the confines of said roll housing and in close proximity to the bite of said metal Working rolls, leaf springs secured to said brackets and having 10 In testimony whereof, ll have hereunto set 15 my hand.

WILLMM A. iRViN. 

